test_governance_large_roadmap.py
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| 1 | """Stress tests for governance-sync (§8 stress tier).""" |
| 2 | |
| 3 | from __future__ import annotations |
| 4 | |
| 5 | import json |
| 6 | from pathlib import Path |
| 7 | |
| 8 | from tools.governance_hygiene.drift import detect_drift |
| 9 | from tools.governance_hygiene.patch import build_roadmap_patches |
| 10 | from tools.governance_hygiene.types import DriftReport, MergedPullRequest, VerifiedReads |
| 11 | |
| 12 | |
| 13 | def _big_roadmap(rows: int) -> str: |
| 14 | lines = [ |
| 15 | "# Stress — Roadmap", |
| 16 | "", |
| 17 | "## Build queue", |
| 18 | "", |
| 19 | "| Phase | Model | Status | Deliverable |", |
| 20 | "| --- | --- | --- | --- |", |
| 21 | ] |
| 22 | for index in range(rows): |
| 23 | lines.append(f"| **P{index:03d}** | Auto | **TODO** | item {index} |") |
| 24 | return "\n".join(lines) + "\n" |
| 25 | |
| 26 | |
| 27 | def _many_merged(count: int) -> tuple[MergedPullRequest, ...]: |
| 28 | return tuple( |
| 29 | MergedPullRequest( |
| 30 | number=1000 + index, |
| 31 | title=f"P{index:03d} delivery", |
| 32 | merge_commit_sha=f"{index:040x}", |
| 33 | merged_at="2026-07-01T00:00:00Z", |
| 34 | ) |
| 35 | for index in range(count) |
| 36 | ) |
| 37 | |
| 38 | |
| 39 | def test_large_roadmap_reconciles_quickly() -> None: |
| 40 | reads = VerifiedReads( |
| 41 | regime="git-only", |
| 42 | r1_github_main_sha="a" * 40, |
| 43 | r1_command="git rev-parse origin/main", |
| 44 | r2_anchor_sha="a" * 40, |
| 45 | r2_source="origin/main", |
| 46 | r3_canonical_main_sha="a" * 40, |
| 47 | r3_command=None, |
| 48 | r4_merged_prs=_many_merged(40), |
| 49 | r5_branch="main", |
| 50 | r5_dirty=False, |
| 51 | r5_regime="git-only", |
| 52 | ) |
| 53 | drift = DriftReport( |
| 54 | d1_handover_vs_git="aligned", |
| 55 | d2_anchor_vs_canonical="aligned", |
| 56 | d3_queue_vs_merged="drifted", |
| 57 | ) |
| 58 | roadmap = _big_roadmap(200) |
| 59 | patched, sections = build_roadmap_patches(roadmap, reads, drift) |
| 60 | assert "build-queue" in sections |
| 61 | assert len(patched) > len(roadmap) // 2 |
| 62 | redrift = detect_drift(reads, "| **main HEAD** | `" + "a" * 40 + "` |", patched) |
| 63 | assert redrift.d3_queue_vs_merged in {"aligned", "drifted"} |